Starting from August 4, 2011 up to the present date, I have 169 messages which means 169 users gave me a private message~ wow! 

but it might not be much compared to you guys~ I'm curious~ how many private messages are in your AFF inbox?

My sent also has 149 though o_o;; I always reply to messages though, maybe it doesn't record if I'm the one who stopped replying to a certain message? hmm...